Search Results
66 matches found. Click on scientific name for details
Search Criteria: Scientific Name starts with R
| Scientific Name | Common Name | Family | Lifeform | Blooming Period | Fed List | State List | Global Rank | State Rank | CA Rare Plant Rank | Other Status | Threats | General Habitats | Microhabitats | Lowest Elevation (m) | Highest Elevation (m) | Lowest Elevation (ft) | Highest Elevation (ft) | CA Endemic | Date Added | Photo |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ravenella exigua | chaparral harebell | Campanulaceae | annual herb | May-Jun | None | None | G2 | S2 | 1B.2 | BLM_S; SB_CalBG/RSABG | Development, Erosion/runoff, Grazing, Mining, Non-native plant impacts, Road/trail construction/maint. | Chaparral (rocky, usually serpentinite) | 275 | 1250 | 900 | 4100 | Yes | 1974-01-01 |
No Photo Available |
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| Ravenella sharsmithiae | Sharsmith's harebell | Campanulaceae | annual herb | Apr-Jun | None | None | G1G2 | S1S2 | 1B.2 | Chaparral (rocky, serpentinite) | 490 | 855 | 1610 | 2805 | Yes | 1984-01-01 |
No Photo Available |
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| Rhinotropis cornuta var. fishiae | Fish's milkwort | Polygalaceae | perennial deciduous shrub | May-Aug | None | None | G5T4 | S4 | 4.3 | Chaparral, Cismontane woodland, Riparian woodland | 100 | 1000 | 330 | 3280 | 1974-01-01 |
No Photo Available |
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| Rhinotropis heterorhyncha | notch-beaked milkwort | Polygalaceae | perennial herb | Apr-May | None | None | G2 | S2 | 2B.3 | Mojavean desert scrub (alkaline) | 900 | 1600 | 2955 | 5250 | 1994-01-01 |
No Photo Available |
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| Rubus glaucifolius var. ganderi | Cuyamaca raspberry | Rosaceae | perennial evergreen shrub | May-Jun | None | None | G5T1Q | S1 | 3.1 | Other | Lower montane coniferous forest (gabbroic) | 1200 | 1675 | 3935 | 5495 | Yes | 1980-01-01 |
No Photo Available |
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| Rubus nivalis | snow dwarf bramble | Rosaceae | perennial evergreen vine | Jun-Aug | None | None | G4? | S1 | 2B.3 | Logging | North Coast coniferous forest | 1085 | 1350 | 3560 | 4430 | 1980-01-01 |
© 2021 Scot Loring |
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| Ranunculus macounii | Macoun's buttercup | Ranunculaceae | perennial herb | Jun-Jul | None | None | G5 | S2S3 | 2B.2 | IUCN_LC | Development | Great Basin scrub, Meadows and seeps, Pinyon and juniper woodland | Mesic | 1400 | 1800 | 4595 | 5905 | 2001-01-01 |
No Photo Available |
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| Rhamnus pirifolia | island redberry | Rhamnaceae | perennial evergreen tree | Feb-Jul | None | None | G4 | S4 | 4.2 | SB_CalBG/RSABG | Chaparral, Cismontane woodland, Closed-cone coniferous forest, Coastal scrub | 20 | 430 | 65 | 1410 | 2001-01-01 |
No Photo Available |
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| Rhynchospora capitellata | brownish beaked-rush | Cyperaceae | perennial herb | Jul-Aug | None | None | G5 | S1 | 2B.2 | IUCN_LC | Altered flood/tidal/hydrologic regime, Development, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, Other, Surface water diversion | Lower montane coniferous forest, Marshes and swamps, Meadows and seeps, Upper montane coniferous forest | Mesic | 45 | 2000 | 150 | 6560 | 1974-01-01 |
©2004 Dean Wm. Taylor |
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| Ribes roezlii var. amictum | hoary gooseberry | Grossulariaceae | perennial deciduous shrub | Mar-Apr | None | None | G5T4 | S4 | 4.3 | Broadleafed upland forest, Cismontane woodland, Lower montane coniferous forest, Upper montane coniferous forest | 120 | 2300 | 395 | 7545 | Yes | 2001-01-01 |
©1973 Dean Wm. Taylor |
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| Robinia neomexicana | New Mexico locust | Fabaceae | perennial deciduous shrub | May-Jul | None | None | G4 | S1 | 2B.3 | IUCN_LC | Pinyon and juniper woodland (sandy) | 1500 | 1770 | 4920 | 5805 | 1974-01-01 |
No Photo Available |
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| Romanzoffia tracyi | Tracy's romanzoffia | Hydrophyllaceae | perennial herb | Mar-May | None | None | G4 | S2 | 2B.3 | Coastal bluff scrub, Coastal scrub | Rocky | 15 | 30 | 50 | 100 | 2001-01-01 |
©2017 Steve Matson |
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| Rosa pinetorum | pine rose | Rosaceae | perennial shrub | May-Jul | None | None | G2 | S2 | 1B.2 | Biocides, Development, Erosion/runoff, Foot traffic/trampling, Non-native plant impacts, Other, Road/trail construction/maint. | Cismontane woodland, Closed-cone coniferous forest | 2 | 945 | 5 | 3100 | Yes | 2001-01-01 |
No Photo Available |
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| Rumex venosus | winged dock | Polygonaceae | perennial herb | (Apr)May-Jun | None | None | G5? | S3 | 2B.3 | Grazing, Other | Great Basin scrub (sandy) | 1200 | 1800 | 3935 | 5905 | 2001-01-01 |
No Photo Available |
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| Rhinotropis subspinosa | spiny milkwort | Polygalaceae | perennial herb | May-Aug | None | None | G4? | S3 | 2B.2 | Grazing, Non-native plant impacts, Other, Road/trail construction/maint. | Great Basin scrub, Pinyon and juniper woodland | Gravelly, Rocky | 1330 | 1705 | 4365 | 5595 | 1984-01-01 |
No Photo Available |
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| Rupertia rigida | Parish's rupertia | Fabaceae | perennial herb | Jun-Aug | None | None | G4 | S4 | 4.3 | SB_CRES | Chaparral, Cismontane woodland, Lower montane coniferous forest, Meadows and seeps, Pebble (Pavement) plain, Valley and foothill grassland | 700 | 2500 | 2295 | 8205 | 1974-01-01 |
No Photo Available |
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| Raillardella pringlei | showy raillardella | Asteraceae | perennial rhizomatous herb | Jul-Sep | None | None | G2G3 | S2S3 | 1B.2 | SB_BerrySB; SB_CalBG/RSABG; USFS_S | Altered flood/tidal/hydrologic regime, Dam/Inundation, Erosion/runoff, Foot traffic/trampling, Grazing, Logging, Other, Recreational use (non-ORV), Road/trail construction/maint. | Bogs and fens, Meadows and seeps, Upper montane coniferous forest | Mesic, Serpentine | 1200 | 2290 | 3935 | 7515 | Yes | 1974-01-01 |
©2008 Shauna Hee |
| Ranunculus hydrocharoides | frog's-bit buttercup | Ranunculaceae | perennial herb (aquatic) | (May)Jun-Sep | None | None | G4 | S1 | 2B.1 | Foot traffic/trampling, Grazing, Other | Marshes and swamps (freshwater) | 1100 | 2700 | 3610 | 8860 | 1974-01-01 |
No Photo Available |
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| Ranunculus lobbii | Lobb's aquatic buttercup | Ranunculaceae | annual herb (aquatic) | Feb-May | None | None | G4 | S3 | 4.2 | IUCN_LC | Cismontane woodland, North Coast coniferous forest, Valley and foothill grassland, Vernal pools | Mesic | 15 | 470 | 50 | 1540 | 1974-01-01 |
No Photo Available |
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| Rhynchospora alba | white beaked-rush | Cyperaceae | perennial rhizomatous herb | Jun-Aug | None | None | G5 | S2 | 2B.2 | IUCN_LC | Altered flood/tidal/hydrologic regime, Biocides, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Vandalism/dumping/litter | Bogs and fens, Marshes and swamps (freshwater), Meadows and seeps | 60 | 2040 | 195 | 6695 | 1974-01-01 |
© 2021 Scot Loring |
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| Rhynchospora californica | California beaked-rush | Cyperaceae | perennial rhizomatous herb | May-Jul | None | None | G1 | S1 | 1B.1 | SB_UCSC | Altered flood/tidal/hydrologic regime, Foot traffic/trampling, Grazing, Non-native plant impacts | Bogs and fens, Lower montane coniferous forest, Marshes and swamps (freshwater), Meadows and seeps (seeps) | 45 | 1010 | 150 | 3315 | Yes | 1974-01-01 |
© 2004 Steve Matson |
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| Rhynchospora globularis | round-headed beaked-rush | Cyperaceae | perennial rhizomatous herb | Jul-Aug | None | None | G5 | S1 | 2B.1 | Marshes and swamps (freshwater) | 45 | 60 | 150 | 195 | 1974-01-01 |
No Photo Available |
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| Ribes amarum var. hoffmannii | Hoffmann's bitter gooseberry | Grossulariaceae | perennial deciduous shrub | Mar-Apr | None | None | G4?T3 | S3 | 3 | Chaparral, Riparian woodland | 5 | 1190 | 15 | 3905 | Yes | 1984-01-01 |
No Photo Available |
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| Ribes canthariforme | Moreno currant | Grossulariaceae | perennial deciduous shrub | Feb-Apr | None | None | G2 | S2 | 1B.3 | SB_CRES; USFS_S | Development, Improper burning regime, Recreational use (non-ORV), Road/trail construction/maint., Wood cutting or brush clearing | Chaparral, Riparian scrub | 340 | 1200 | 1115 | 3935 | Yes | 1974-01-01 |
No Photo Available |
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| Ribes divaricatum var. parishii | Parish's gooseberry | Grossulariaceae | perennial deciduous shrub | Feb-Apr | None | None | G5TX | SX | 1A | Channelization, Development, Improper burning regime, Non-native plant impacts, Other | Riparian woodland | 65 | 300 | 215 | 985 | Yes | 1988-01-01 |
No Photo Available |
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| Ribes hudsonianum var. petiolare | western black currant | Grossulariaceae | perennial deciduous shrub | May-Jul | None | None | G5T5 | S2 | 2B.3 | Recreational use (non-ORV), Road/trail construction/maint. | Riparian scrub | 1500 | 2230 | 4920 | 7315 | 1988-01-01 |
No Photo Available |
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| Ribes laxiflorum | trailing black currant | Grossulariaceae | perennial deciduous shrub | Mar-Jul(Aug) | None | None | G5? | S3 | 4.3 | North Coast coniferous forest | Roadsides (sometimes) | 5 | 1395 | 15 | 4575 | 1974-01-01 |
©2010 Dana York |
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| Ribes marshallii | Marshall's gooseberry | Grossulariaceae | perennial deciduous shrub | Jun-Jul | None | None | G4 | S4 | 4.3 | Closed-cone coniferous forest, Subalpine coniferous forest, Upper montane coniferous forest | 1200 | 2100 | 3935 | 6890 | 1974-01-01 |
©2017 Dana York |
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| Ribes menziesii var. ixoderme | aromatic canyon gooseberry | Grossulariaceae | perennial deciduous shrub | Apr | None | None | G4T2 | S2 | 1B.2 | Road/trail construction/maint. | Chaparral, Cismontane woodland | 610 | 1160 | 2000 | 3805 | Yes | 1980-01-01 |
No Photo Available |
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| Ribes sericeum | Santa Lucia gooseberry | Grossulariaceae | perennial deciduous shrub | Feb-Apr | None | None | G4 | S4 | 4.3 | SB_UCSC | Broadleafed upland forest, Cismontane woodland, Coastal bluff scrub, North Coast coniferous forest | 305 | 1220 | 1000 | 4005 | Yes | 1974-01-01 |
No Photo Available |
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| Ribes thacherianum | Santa Cruz Island gooseberry | Grossulariaceae | perennial deciduous shrub | Feb-Jun | None | None | G2 | S2 | 1B.2 | SB_USDA | Cismontane woodland, Closed-cone coniferous forest, Riparian woodland | 10 | 455 | 35 | 1495 | Yes | 1974-01-01 |
No Photo Available |
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| Ribes tularense | Sequoia gooseberry | Grossulariaceae | perennial deciduous shrub | May | None | None | G1 | S1 | 1B.3 | BLM_S | Logging, Other, Road/trail construction/maint., Vandalism/dumping/litter | Lower montane coniferous forest, Upper montane coniferous forest | 1500 | 2075 | 4920 | 6810 | Yes | 1974-01-01 |
No Photo Available |
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| Ribes viburnifolium | Santa Catalina Island currant | Grossulariaceae | perennial evergreen shrub | Feb-Apr | None | None | G2? | S2? | 1B.2 | SB_USDA | Erosion/runoff | Chaparral, Cismontane woodland | 30 | 350 | 100 | 1150 | 1974-01-01 |
No Photo Available |
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| Ribes victoris | Victor's gooseberry | Grossulariaceae | perennial deciduous shrub | Mar-Apr | None | None | G3G4 | S3S4 | 4.3 | Broadleafed upland forest, Chaparral | Mesic | 100 | 750 | 330 | 2460 | Yes | 1974-01-01 |
No Photo Available |
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| Romneya coulteri | Coulter's matilija poppy | Papaveraceae | perennial rhizomatous herb | Mar-Jul(Aug) | None | None | G4 | S4 | 4.2 | SB_CalBG/RSABG | Chaparral, Coastal scrub | Burned areas (often) | 20 | 1200 | 65 | 3935 | 1974-01-01 |
No Photo Available |
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| Rorippa columbiae | Columbia yellow cress | Brassicaceae | perennial rhizomatous herb | May-Sep | None | None | G3 | S2 | 1B.2 | USFS_S | Altered flood/tidal/hydrologic regime, Biocides, Development, Foot traffic/trampling, Grazing, Logging, Non-native plant impacts, ORV activity, Other, Road/trail construction/maint., Wood cutting or brush clearing | Lower montane coniferous forest, Meadows and seeps, Playas, Vernal pools | Mesic | 1200 | 1800 | 3935 | 5905 | 1980-01-01 |
©2013 Justy Leppert |
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| Rorippa subumbellata | Tahoe yellow cress | Brassicaceae | perennial rhizomatous herb | May-Sep | None | CE | G1 | S1 | 1B.1 | SB_BerrySB; SB_CalBG/RSABG; USFS_S | Altered flood/tidal/hydrologic regime, Development, Erosion/runoff, Foot traffic/trampling, Grazing, Non-native plant impacts, ORV activity, Other, Recreational use (non-ORV), Vandalism/dumping/litter, Waterway bank protection/maintenance | Lower montane coniferous forest, Meadows and seeps | Decomposed granitic | 1890 | 1905 | 6200 | 6250 | 1974-01-01 |
No Photo Available |
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| Rosa minutifolia | small-leaved rose | Rosaceae | perennial deciduous shrub | Jan-Jun | None | CE | G2G3 | SX.C | 2B.1 | SB_CalBG/RSABG; SB_CRES | Development, Non-native plant impacts, ORV activity, Wood cutting or brush clearing | Chaparral, Coastal scrub | 150 | 160 | 490 | 525 | 1988-01-01 |
No Photo Available |
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| Rhus aromatica var. simplicifolia | single-leaved skunkbrush | Anacardiaceae | perennial deciduous shrub | Mar-Apr | None | None | G5T5 | S2 | 2B.3 | Foot traffic/trampling | Pinyon and juniper woodland | Granitic (usually) | 1220 | 1370 | 4005 | 4495 | 1994-01-01 |
No Photo Available |
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| Rupertia hallii | Hall's rupertia | Fabaceae | perennial herb | Jun-Aug(Sep) | None | None | G2G3 | S2S3 | 1B.2 | BLM_S; USFS_S | Improper burning regime, Logging, ORV activity, Other, Recreational use (non-ORV), Road/trail construction/maint., Vandalism/dumping/litter | Cismontane woodland, Lower montane coniferous forest | Openings (sometimes), Roadsides (often) | 545 | 2250 | 1790 | 7380 | Yes | 1994-01-01 |
No Photo Available |
| Rhinotropis acanthoclada | thorny milkwort | Polygalaceae | perennial shrub | May-Aug | None | None | G4 | S2S3 | 2B.3 | Development, Mining, ORV activity | Chenopod scrub, Joshua tree "woodland", Pinyon and juniper woodland | 760 | 2285 | 2495 | 7495 | 2001-01-01 |
No Photo Available |
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| Rhinotropis intermontana | intermountain milkwort | Polygalaceae | perennial shrub | Jun-Jul(Oct) | None | None | G4 | S2 | 2B.1 | Development, Foot traffic/trampling, ORV activity | Pinyon and juniper woodland | 2010 | 3080 | 6595 | 10105 | 2001-01-01 |
No Photo Available |
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| Ranunculus alveolatus | CBR | 2006-01-10 |
No Photo Available |
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| Ranunculus bonariensis var. trisepalus | CBR | 2006-01-10 |
No Photo Available |
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| Rhamnus pilosa | CBR | 2006-01-10 |
No Photo Available |
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| Rhynchospora glomerata var. capitellata | CBR | 2006-01-10 |
No Photo Available |
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| Rhynchospora glomerata var. minor | CBR | 2006-01-10 |
No Photo Available |
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| Ribes divaricatum var. pubiflorum | CBR | 2006-01-10 |
No Photo Available |
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| Rubus pedatus | CBR | 2006-01-10 |
©2021 Scot Loring |
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| Romneya trichocalyx | CBR | 2006-01-10 |
No Photo Available |
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| Rhamnus rubra ssp. rubra | CBR | 2006-01-10 |
No Photo Available |
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| Ribes californicum var. hesperium | CBR | 2006-01-10 |
No Photo Available |
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| Ribes menziesii var. senile | CBR | 2006-01-10 |
No Photo Available |
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| Ribes viscosissimum var. hallii | CBR | 2006-01-10 |
No Photo Available |
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| Rhamnus alnifolia | alder buckthorn | Rhamnaceae | perennial deciduous shrub | May-Jul | None | None | G5 | S3 | 2B.2 | SB_UCSC | Dam/Inundation, Development, Grazing, Logging, Road/trail construction/maint. | Lower montane coniferous forest, Meadows and seeps, Riparian scrub, Upper montane coniferous forest | 1370 | 2130 | 4495 | 6990 | 2008-03-26 |
No Photo Available |
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| Riella americana | American riella | Riellaceae | liverwort (aquatic) | Aug-Sep | None | None | G2G3 | S1 | 2B.2 | Lower montane coniferous forest, Pinyon and juniper woodland | 1615 | 1615 | 5300 | 5300 | 2011-03-23 |
No Photo Available |
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| Rosa gymnocarpa var. serpentina | Gasquet rose | Rosaceae | perennial rhizomatous shrub | Apr-Jun(Aug) | None | None | G5T3T4 | S2 | 1B.3 | SB_BerrySB; SB_CalBG/RSABG | Chaparral, Cismontane woodland | Openings, Roadsides (often), Serpentine, Streambanks | 400 | 1725 | 1310 | 5660 | 2011-11-30 |
Dean Wm. Taylor, 2020 |
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| Racomitrium aquaticum | CBR | 2014-02-11 |
No Photo Available |
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| Ramalina thrausta | angel's hair lichen | Ramalinaceae | fruticose lichen (epiphytic) | None | None | G5? | S2S3 | 2B.1 | Erosion/runoff, Logging, Other | North Coast coniferous forest | 75 | 430 | 245 | 1410 | 2014-03-01 |
© 2013 Scot Loring |
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| Rosa woodsii var. glabrata | Cushenbury rose | Rosaceae | perennial shrub | (Apr)May-Aug | None | None | G5T1 | S1 | 1B.1 | SB_CalBG/RSABG | Mojavean desert scrub (springs) | 910 | 1435 | 2985 | 4710 | Yes | 2016-08-26 |
No Photo Available |
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| Ribes cereum var. inebrians | CBR | 2024-02-29 |
No Photo Available |
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| Ribes malvaceum var. clementinum | CBR | 2024-02-29 |
No Photo Available |
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| Ribes menziesii var. hystrix | CBR | 2024-02-29 |
No Photo Available |
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| Rubus leucodermis var. trinitatis | CBR | 2024-02-29 |
No Photo Available |
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| Rumex fueginus var. fueginus | CBR | 2024-03-06 |
No Photo Available |
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| Rumex fueginus var. ovato-cordatus | CBR | 2024-03-06 |
No Photo Available |